Blowing assembly for a sealing unit of a packaging device

Abstract

A blowing assembly for a sealing unit of a packaging device is provided comprising a housing and at least one blowing element which is movable relative to said housing between a first position, in which it is lowered at least partially into said housing, and a second position in which it at least partially projects above a surface of said housing. Also provided is a method for removing excess packing material from a blowing assembly for a sealing unit being provided in a packaging device.

What is claimed is: 
     
       1. A blowing assembly for a sealing unit of a packaging device, said blowing assembly comprising:
 a housing; and 
 at least one blowing element which is movable relative to said housing between a first position in which said blowing element is lowered at least partially into said housing, and a second position in which said blowing element at least partially projects above a surface of said housing, wherein said blowing element comprises one of a blowing rail or at least one blowing pin. 
 
     
     
       2. The blowing assembly according to  claim 1 , wherein said blowing element is arranged flush with said surface of said housing when said blowing element is in said first position. 
     
     
       3. The blowing assembly according to  claim 1 , wherein said blowing element is orthogonally movable relative to said surface of said housing. 
     
     
       4. The blowing assembly according to  claim 1 , wherein in said housing, a guide section is formed in which said blowing element is movably arranged. 
     
     
       5. The blowing assembly according to  claim 4 , wherein said housing comprises a compressed air port, wherein a volume of compressed air is supplied into said guide section through said compressed air port. 
     
     
       6. The blowing assembly according to  claim 4 , wherein said guide section comprises an aperture through which said blowing element protrudes when said blowing element is in said second position. 
     
     
       7. The blowing assembly according to  claim 1 , wherein said housing comprises at least one stop which holds said blowing element at said housing when said blowing element is in said second position. 
     
     
       8. The blowing assembly according to  claim 1 , wherein said blowing element further comprises an inlet, wherein a volume of air is introduced into a channel provided in said blowing element through said inlet. 
     
     
       9. The blowing assembly according to  claim 8 , wherein an under side of said blowing element has a larger area than said inlet. 
     
     
       10. The blowing assembly according to  claim 1 , wherein said blowing element comprises said blowing rail, and said blowing element further comprises a plurality of air apertures through which air can flow out from said blowing element. 
     
     
       11. The blowing assembly according to  claim 1 , wherein said blowing element further comprises at least one sealing element for preventing sudden impact of said blowing element against said housing. 
     
     
       12. The blowing assembly according to  claim 1 , wherein said blowing assembly is incorporated with an abutment for a sealing unit of a packaging device and wherein said housing is integrally formed with a counter-pressure plate of said abutment. 
     
     
       13. A blowing assembly for a sealing unit of a packaging device, said blowing assembly comprising:
 a housing; and 
 at least one blowing element which is movable relative to said housing between a first position in which said blowing element is lowered at least partially into said housing, and a second position in which said blowing element at least partially projects above a surface of said housing, wherein said blowing element is arranged flush with said surface of said housing when said blowing element is in said first position. 
 
     
     
       14. A blowing assembly for a sealing unit of a packaging device, said blowing assembly comprising:
 a housing; 
 at least one blowing element which is movable relative to said housing between a first position in which said blowing element is lowered at least partially into said housing, and a second position in which said blowing element at least partially projects above a surface of said housing; and 
 a guide section formed in said housing, wherein said blowing element is movably arranged within said guide section.